Re: Load data/info needed for Montana Gold 158gr in 38 Speci
Posted: 05 Oct 2013 17:16
Chrono (10 shot strings) results for my Rossi (24") with the chrono set @ 10' from the muzzle:
First, I chrono'd the closest factory ammo that I could find which was Remington 158gr +P JHP; it was not crimped and was in nickel plated cases. Average velocity was 1,346 FPS.
Next, I chrono'd some of my loads all of which were with a roll crimp and the VV N340 powder as follows:
Powder Charge FPS
------------------- ----------
5.1 887
5.3 973
5.4 1,013
5.5 1,035
5.6 1,071
Accuracy was good with all of the loads (checked @ 25 & 50 yrds). What surprised me was that
the velocity was significantly less than I would have expected based upon the data from VV (which was for a 6 1/2" barrel) or any of the other sources I consulted.
When I get my revolver back (another couple of weeks) I'll chrono the same loads and post.
Also, I'm getting in some AA No.5 and will be performing load testing with that as well.
Any and all feedback would be appreciated
First, I chrono'd the closest factory ammo that I could find which was Remington 158gr +P JHP; it was not crimped and was in nickel plated cases. Average velocity was 1,346 FPS.
Next, I chrono'd some of my loads all of which were with a roll crimp and the VV N340 powder as follows:
Powder Charge FPS
------------------- ----------
5.1 887
5.3 973
5.4 1,013
5.5 1,035
5.6 1,071
Accuracy was good with all of the loads (checked @ 25 & 50 yrds). What surprised me was that
the velocity was significantly less than I would have expected based upon the data from VV (which was for a 6 1/2" barrel) or any of the other sources I consulted.
When I get my revolver back (another couple of weeks) I'll chrono the same loads and post.
Also, I'm getting in some AA No.5 and will be performing load testing with that as well.
Any and all feedback would be appreciated